{Core} Fix cached help returning in tab completion scenarios. (#32835)

Author: DanielMicrosoft

src/azure-cli-core/azure/cli/core/commands/__init__.py

@@ -518,7 +518,7 @@ def execute(self, args):
         command_preserve_casing = roughly_parse_command_with_casing(args)
         args = _pre_command_table_create(self.cli_ctx, args)
 
-        if self._should_use_command_index() and self._is_top_level_help_request(args):
+        if self._should_show_cached_help(args):
             result = self._try_show_cached_help(command_preserve_casing, args)
             if result:
                 return result
@@ -735,6 +735,11 @@ def _should_use_command_index(self):
         """Check if command index optimization is enabled."""
         return self.cli_ctx.config.getboolean('core', 'use_command_index', fallback=True)
 
+    def _should_show_cached_help(self, args):
+        return (self._should_use_command_index() and
+                self._is_top_level_help_request(args) and
+                not self.cli_ctx.data.get('completer_active'))
+
     def _try_show_cached_help(self, command_preserve_casing, args):
         """Try to show cached help for top-level help request.